D7G Front Idler Assy for Komatsu 7-Ton Excavators

The D7G Idler Assy is Kubota's compact powerhouse component designed for excavators in demanding Australian projects. This precision-engineered bottom roller ensures durability, excellent load-bearing capacity, and smooth operation in compact construction machinery.

The D7G Idler Assy (short for "idler assembly") is a critical wear part in the undercarriage system of Caterpillar D7G bulldozers, playing a vital role in maintaining track alignment, reducing friction, and ensuring smooth operation. It is designed to work in conjunction with track rollers, sprockets, and carriers to support the bulldozer's weight and guide the track chain along its correct path--functions essential for stability and efficiency during tasks like digging, pushing, and traversing rough terrain.

Our production involves rigorous quality-controlled processes:

• High-grade Material Selection: Components are crafted from premium materials for maximum durability
• Outer Race/Shell: High-carbon chromium bearing steel (SUJ2) for superior hardness and wear resistance
• Inner Roller/Spindle: Alloy steel (SCM440) engineered to withstand significant radial and axial loads
• Seals & Lubrication: Nitrile rubber (NBR) seals for oil resistance with lithium-based grease for long-term lubrication
• Quality Assurance: All materials undergo thorough inspection for chemical composition and mechanical properties using spectrometers and hardness testers